Editing and review techniques can significantly improve UPSC answer scripts. Candidates should allocate time at the end of their writing to review their responses thoroughly. Focusing on clarity, conciseness, and coherence enhances the overall quality of the answers. Checking for grammatical errors and ensuring that the response directly addresses the question are crucial steps. Additionally, structuring the answers with clear headings and bullet points, where applicable, can make them more readable. Practicing these techniques during preparation can yield better results in the examination.